Our Services

Holts specialise in both Jewellery Services and Gemstone Services. From pearl restringing to gemstone faceting, from repairing rings to restoring jewellery boxes and everything inbetween!

You have 3 options with Holts Gems services:
1. Visit our shop in Hatton Garden so we can assess your items
2. Post your item to us for appraisal and we will then contact you with an estimate for approval. We will return your finished item via an insured delivery service.
3. Call us to discuss your service requirements on 020 7405 5286

Bespoke Design

Bespoke Design

It's easy to be unique with our in-house designers and gemmologists. You & your dedicated designer will have an in depth session to discuss tastes, lifestyle and interests of the recipient. Our designer presents you with unique hand-drawn sketches and a selection of gemstones for you to choose from and approve - you can change your design until it's perfect. Once we are 100% satisfied with the design, finish and polish we will present your item gift wrapped and ready to go.

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Jewellery Valuation

Jewellery Valuation

Whether you have invested in a piece of fine jewellery or have inherited a family heirloom, it is advisable to have suitable insurance in place. Holts Gems are Members of the National Association of Jewellers, we employ trained gemmologists and have over 70 years experience of appraising jewellery on site in Hatton Garden. We can also provide jewellery valuations for probate.

Our jewellery valuations are provided as written reports with full descriptions and images, which can also be emailed to you on request. Our turnaround times for insurance valuations vary based on the service chosen. 

Insurance Valuations from £80. Probate Valuations from £60. 

*Prices are dependent on the nature of the materials and on the complexity of the job/jewellery item. Prices exclude VAT.

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Engraving

Engraving

We offer an engraving service for your purchases which is usually charged per letter. Feasibility of engraving for your items is best discussed in-store with our jewellery advisors.

Prices from £50.

*Prices are dependent on the nature of the materials and on the complexity of the job/jewellery item. Prices exclude VAT.

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Stringing (beads & pearls)

Stringing (beads & pearls)

We have a dedicated in-house pearl and bead restringing expert. Pearls in particular are a lifelong investment and should be re-strung every 2 years, we can work with knotted or plain strands.

Maybe you have inherited a family heirloom and want to recreate it into a more contemporary jewellery piece…adding a different clasp, changing the length or incorporating complementary pearls/beads can breathe new life into older pieces.

Prices from £25 per row.

*Prices are dependent on the nature of the materials and on the complexity of the job/jewellery item. Prices exclude VAT.

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Repairs

Repairs

Holts Gems can offer repairs on most jewellery items, where deemed possible by our jewellery advisors. You will need to bring or send your item in for inspection before we are able to quote.

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Sizing

Sizing

We are able to size most rings up or down but you will need to bring your item in/or send it to be assessed before we can quote. Whether it is a plain wedding band or a stone set ring, we should be able to alter it. A re-size up or down would usually take up to 7 working days.

Sizing down from £60. Sizing up from £80.

*Prices are dependent on the nature of the materials and on the complexity of the job/jewellery item. Prices exclude VAT.

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Retipping

Retipping

Over time claw settings can wear down which makes it more likely for the stone set inside to fall out. To ensure your setting is fully secure, we would recommend re-tipping claws (where viable) to keep your stone safe. 

Also, should a claw be pulled or dented by accident, we would recommend you bring your item in for advice on what to do. A straight-forward re-tipping will take 5-7 working days.
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Resetting

Resetting

Have you lost a stone from a setting or would you like to simply change a stone? We can re-set most stones for you, so please visit Holts Gems for further advice.

We have a vast selection of coloured gemstones for you to choose from and if we need to adjust a stone to fit a specific setting, our on-site lapidary may be able to re-cut your chosen stone for you. A simple re-set should take 4-7 days. Having to re-cut a stone would take longer.

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Metal Polishing

Metal Polishing

Over time jewellery can tarnish or lose its’ original lustre so to bring it back to life, we offer a re-polishing service. We don’t advise you to do it too often but once in a while or for a special occasion drop your item in to Holts Gems to give it back its’ sparkle. Depending on the item, it would usually take 1-2 working days.

Revive the Sparkle
Rhodium Plating

Rhodium Plating

White gold and platinum can lose their whiteness over time so adding a rhodium layer to your jewellery will take it back to a whiter colour and restore a glossy shine. This can usually be done within 2-4 working days.

Get in Touch

You have 2 options with Holts Gems services:
1. Visit our onsite lapidary workshop in Hatton Garden so we can assess your items
2. Post your item to us for appraisal and we will then contact you with an estimate for approval. We will return your finished item via an insured delivery service.
Please see past lapidary projects here.

Gemstone Testing

Gemstone Testing

In our on-site gem lab we have a wide range of standard gemmological testing equipment to help enable a positive identification of a wide range of gem materials; we are able to test both loose and mounted gems. You are more than welcome to be present whilst the stone testing is carried out. Upon completion of the test, we issue a certificate outlining the physical details of the gemstone (ie: cut, colour, weight and physical measurements) as well as the identification. We also provide a Gemstone Valuation service where we would do as above with a insurance valuation provided.

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Cutting

Cutting

Our team of highly trained lapidaries are happy to fashion your gemstone into any shape according to your requirement as well as repairing or re-polishing a gemstone to its original condition. The master craftsmen in our team have worked on extremely expensive stones and have even cut gemstones for a blockbuster movie! We are happy to guide you through the possibilities.

Cutting a cabochon from £30.

*Prices are dependent on the nature of the materials and on the complexity of the job/jewellery item. Prices exclude VAT.

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Polishing

Polishing

Polishing is the ‘art of making things shiny’, to put a natural luster to a gemstone. Our team of highly skilled craftsmen use polishing to make the surface of the gemstone feel smooth and bring out the colours of the gemstone. In different gemstones polishing enables the naked eye to see into the gemstones; it shows off any internal inclusions. However, on transparent gemstones it allows you to see the polishing surface on the back of the stone, and in turn reveals the other face at the front of the stone.  

Revive the Sparkle
Faceting

Faceting

The art of faceting; faceting is the term used for accurate cuts at specific angles on a gemstone which in turn reflects throughout the stones to bring a brilliance and light to the stone which alters as you move the stone around. Most stones can be faceted, but this is only suitable for stones of a certain hardness as the facets would wear very quickly - our craftsmen are happy to advise you as to the possibilities with your gemstone.

Faceting can be done in many different cuts. The most popular cuts are brilliant, emerald, princess and fancy cuts. Fancy cuts are numerous and can be very specific, we can create the following cuts: heart shapes, triliion, kite, portugueses, checkboard.      

Re-faceting from £80.

*Prices are dependent on the nature of the materials and on the complexity of the job/jewellery item. Prices exclude VAT.

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 Carving

Carving

Carving is a technique of using various diamond plated tools to shape a piece of gemstone into a desired form i.e. animals, flowers, inlay work, clocks, watches, cameos, statues, fluted..

Our lapidary team have been commissioned to do repairs for all sorts of carvings where they have been damaged, for example, musical instruments, luxury yacht handles to models of planes!  

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Drilling

Drilling

Mostly our drilling service is used for beads, earrings, pendants or to create larger holes into bases for figures or clocks. Our highly skilled lapidaries can create different sized holes into materials or enlarge existing holes for stringing purposes. Stones can be half drilled for mounting on pegs for earrings or pendants. We love a challenge and can drill anything from beach pebbles with sentimental value to very expensive pearls. We have drilled pearls up to £100,000.

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Restoration

Restoration

Our lapidaries relish restoring an object back or as close to its original look. We restore everything that is precious or semi-precious gemstone related: clocks, statues, picture frames, fireplaces, jewellery boxes, carving.

A lot of the restoration involves matching up brand new materials to the original material. And also working on damaged stones: chips, damaged sections, broken off arms etc. We are happy to discuss your restoration project, advising you on what is possible and how long the restoration work will take.

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Lapidary Machinery

Lapidary Machinery

Our lapidaries began making machinery as they dscovered there were very few people building machines for gemstone cutters in the UK. We currently have two machines available to buy:

1. A machine for sanding and polishing precious and semi-precious stones. (ruby, tourmaline, peridot, emerald, garnet, lapis…) This machine can be screwed on the table and is ready to use.

2. A front facing grinder that can be used with different grades of cutting dish.

All the machines are built in house and some of them can be made to order. Depending on what you need, we can possibly adapt the characteristics of the machine to do what you need it to. 

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